US Bridges

SR 400 LR228 over Pa Turnpike - I-76

Good

Allegheny County, Pennsylvania · Milepost 53.66 · Structure no. 000000000055084

Built
2018
7 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
211 ft
2 main spans
Daily traffic
7,708
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR 400 LR228 over Pa Turnpike - I-76 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 400 LR228 over Pa Turnpike - I-76 in Allegheny County, Pennsylvania. It was built in 2018, so it is 7 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,708 vehicles a day, roughly 4% of them trucks, projected to reach 13,354 by 2030. The structure is 211 ft (64.3 m) long and 44 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesSR 400 LR228
CrossesPa Turnpike - I-76
LocationMilepost 53.66
RouteState Highway 380
CountyAllegheny County
StatePennsylvania
Coordinates40.47536, -79.76721
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length211 ft (64.3 m)
Longest span116 ft (35.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,708 (2023)
Projected traffic13,354 by 2030
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 400 LR228 over Pa Turnpike - I-76 built?

It was built in 2018, making it 7 years old in 2025.

What condition is SR 400 LR228 over Pa Turnpike - I-76 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2022.

How much traffic does SR 400 LR228 over Pa Turnpike - I-76 carry?

About 7,708 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 400 LR228 over Pa Turnpike - I-76?

The structure is 211 ft (64.3 m) long with a longest span of 116 ft (35.4 m) and a deck 44 ft wide.

Who owns SR 400 LR228 over Pa Turnpike - I-76?

It is owned by the State Toll Authority.